sudo apt update
shows me the following:
Hit:1 http://ppa.launchpad.net/kisak/kisak-mesa/ubuntu focal InRelease
Hit:2 http://ie.archive.ubuntu.com/ubuntu focal InRelease
Hit:3 http://ppa.launchpad.net/zorinos/apps/ubuntu focal InRelease
Hit:4 https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Hit:5 http://ie.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:6 http://ppa.launchpad.net/zorinos/drivers/ubuntu focal InRelease
Hit:7 http://archive.canonical.com/ubuntu focal InRelease
Hit:8 http://ppa.launchpad.net/zorinos/patches/ubuntu focal InRelease
Hit:9 http://ppa.launchpad.net/zorinos/stable/ubuntu focal InRelease
Hit:10 http://ie.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:12 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:13 https://brave-browser-apt-beta.s3.brave.com stable InRelease
Hit:11 https://deb.librewolf.net focal InRelease
Hit:14 https://packages.zorinos.com/stable focal InRelease
Hit:15 https://packages.zorinos.com/patches focal InRelease
Hit:16 https://packages.zorinos.com/apps focal InRelease
Hit:17 https://packages.zorinos.com/drivers focal InRelease
Reading package lists... Done
Now, I uninstalled librewolf, winehq and brave via --purge. To me this looks like it didn't properly remove them. Is there any program which would help me purge them for good?